     Util
     BlockPrefix
     BlockPrefix$BlockType
-    DurableAccumulator
+    AccumulatorOutput
     ChunkSort]))
 
 (set! *warn-on-reflection* true)

                 type (->> (BlockPrefix$BlockType/values)
                        (map gen/return)
                        gen/one-of)]
    (let [out (DurableAccumulator.)
          p   (BlockPrefix. n type)
          _   (.encode p out)
          in  (->> out .contents DurableInput/from)]


(defspec test-vlq-roundtrip iterations
  (prop/for-all [n gen-pos-int]
    (let [out (doto (AccumulatorOutput.)
                (.writeVLQ n))
          in  (->> out
                .contents
